Ruler



FIG. 1 is a fragmentary top view of a ruler according to the present invention;

FIG. 2 is a fragmentary side view of a ruler according to the present invention; and,

FIG. 3 is a magnified fragmentary top view of a ruler according to the present invention.

The end of the ruler is shown broken away in FIGS. 1–3 to indicate indeterminate length. 

The ornamental design for a ruler, as shown and described. 